IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

what is address space in mvs?

IBM,

1 2983

how to send a sms to a mobile through mainframe mvs?

IBM,

1182

How many register we are using in mvs?

IBM,

1054

what is pdes?

IBM,

1118

what is the facility that allows mainframes to be partitioned into lapars? A.z/os b.pr/sm c.vitual storaged.coupling facility

IBM,

1201

what is swap-in and swap-out?

IBM,

1099

what is the size of the address space in kbs for 16 bit address space?

IBM,

1109

how to define a directory and what is the structure and definition for the same?

IBM,

1063

what is the panel name of ispf primary option menu?

IBM,

1149

what is the syntax of ams modal commands?

IBM,

1264

what how do you initialize a vsam file before any operation? A vsam with alternate index?

IBM,

1016

what are the different types of vsam files available? Explain them

IBM,

1 1834

if you wish to use the rewrite command how must the vsam file be opened?

IBM,

1154

what is the purpose of the verify function of idcams?

IBM,

1056

how do you create an alternate index ?

IBM,

1070

Un-Answered Questions { IBM MainFrame }

What is a junction record?

1348

Give certain situations where NEWCOPY is obligatory?

1116

What is the function of //cntl statement?

1336

How would the varchar column remarks defined?

1090

What is the purpose of having vsam data space?

959

Explain the difference between a schema and a subschema in idms?

834

what are the common errors that occured while programming in AS/400?

1533

How to take backup of table in db2?

1079

What do you understand by jcl?

1052

What are the advantages of a hierarchical database?

3294

How To Compile The COBOL-BD2-CI CS Programs In Real TIme? Please Give Me the Detailed Description?

6755

What is adabas?

1022

For protecting a transaction using the transaction security function, the two things that must be done are?

2343

What are the different rules for performing sort operation?

1224

Explain the maximum number of segment types allowed for a single database?

2272

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